Jamie and Jools Oliver hire a night nanny for baby River Rocket after sleep deprivation

JAMIE Oliver and his wife have admitted defeat after welcoming their fifth addition last month.

Jamie Oliver has admitted to hiring a nanny for his newest addition River Rocket[Jamie Oliver/Instagram]

But despite having been through it all before with the rest of the brood, Jamie admitted that he just couldn't cope any longer.

He said that after doing 12 hours of filming without any sleep, that was the final straw.

Speaking to BBC Radio 5 live today he said: "Sleep deprivation makes the most wonderful people just, unreasonable.

"It's really, really hard whether it's your first or your fifth. It hit us hard this year, really hard, because you know we've got two teenagers and it's teenagers things,

River Rocket was welcomed into the world in August[Jamie Oliver/Instagram]

"And you've got a six and seven-year-old as well, and they're up as well, I mean it was hard this time round.

"For the first time ever I've got a night nurse, and she started a week ago, so five weeks in, so you know, we got battered for five weeks.

"I was trying to help out, and do the night feed, and then go and do 15 hours of filming at the end of Southend pier, and that was tough, I've got to say."

Jamie also confessed that sleep depravation is the "most incredible form of torture".

Jools and her husband often take to social media to share cute snaps of their newborn[Jools Oliver/Instagram]

But luckily, the extra pair of hands seems to have been a blessing for the couple.

"We've never had one for four other kids and we just battled through. But I do think routine – and when I say routine it's not just about roughly the same times every night and feeding patterns – does help because digestion is digestion and sleep is sleep," he said.

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[Instagram]

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"But closing the curtains, putting the light on, putting the music on, these little babies can't even see properly for the first month or so.

"So just sonically, heat-wise, all of the things that make them feel happy," he added.

Jamie revealed that the final straw was doing 12 hours of filming on no sleep[Jamie Oliver/Instagram]

Jamie went on to admit that he hopes every mother and father have their own way to make their newborn feel happy but that their latest helping-hand is "golden".